Pumping apparatus.



C. R. HUDSON.

. PUMPI-NG APPARATUS.

APPLIUATION FILED 111111.14, '1911.

1,077,47@ Patented N0v.4,1913,

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'IIIA 1.711,4 WIA "III U rra ES PAT vN @TCE CHARLES R. HUDSON, OF GREEN BAY, WISCONSIN, ASSIGNOR OF ONE-HALF TO DAVID V7. HUDSON, OF GREEN BAY, WISCONSIN.

PUMPING APPARATUS.

My invention relates to improvements in um ainoa aratus.

The object of my invention is to provide improved form of apparatus, especially suited for use in tubular wells, and in which water will be delivered continuously on both strokes of the piston.

In the following description, reference is had to the accompanying drawings, in which- Y Figure 1 is a vertical sectional view of portions of a tubular well showing my vin-` vention as it appears vin position of Vuse therein. Fig. 2 is an elevation, with the pump cylinder or barrel and well casing omitted.

Like parts are identiiied bythe same reference characters in both views.

My improved pumping apparatus is designed to be suspended. in a tubular casing 1. The cylinderor barrel is formedY in sections 2 and 3, which are secured together by a connecting member 4. A piston rod 5, which may be solidat its upper end, is provided with a tubular section 6. The member 6 is connected to the member 5 by a coupling- 9 having ports 10 through which water mayv pass from member 6 into the upper cylinder section 2. Themember 4 is screw threaded at its respective ends to receive the cylinder,-

sections 2 and 3, and the intermediate portion has its inner surface conically tapered to receive a tapered plug 10 through which the tubular piston rod section 6 passes, suitable packing being provided at 11 toprevent leakage. The central portion of the `member 4 is provided with apertures 13,

communicating with inwardly and downwardly extending port-s 15 in the plug 10,

said ports extending through the lower end portion of the plug 10 and Vbeingnormally closed by a ring valve 17, which encircles the piston rod section 6 and is normally supported in closed position by a spring 19 suspended Vfrom plug 10 by a supporting Specification of Letters Patent.

Application filed April 14, 1911.

Patented Nav.v 4, 1913.

serial No. 621,091.

member 20. The walls of said supporting member aresuitably apertured at 21 to permit water to pass into cylinder section 3 when the valve 17 is opened.

The lower end of piston rod section 6 connects with a valve casing 25, to which a piston 26 is secured, said piston having cup leathers 27 and 28, the outer margins of which turn` upwardly and downwardly respectively along `the walls of the cylinder section 3. The ypiston 26 is provided with a central port 30, extending through the piston -and thevalve casing 25, a valve 31 being seated on the upper end of the piston member and normally held toits lseat by gravity. The valve casing 25 is provided with ports 35 leading inwardly from the cylinder section 3 Ato the interior of the valve casing and normally closed by an annular valve 37 having a central port 39 therein, communicating through vthe upper end of vthe passage or port 30 with the interior of piston rod section 6. Valve 37 is normally held to its seat by a spring 40, which spring is seated upon the upper end of the piston vmemlloer l26.

with ports49 normally closed .by the valve 46. 'The valve seat 45 is also provided with an upwardly .projecting member -50 having a 'vlianged projection 51 near its upper end, between which, and the valve 46, a coiled spring 5 2 is located, to insure the closing of said valve 46. The upper end of the member v50 is tapered and yscrew threaded as shown at 55, and isadapted -to engage in the f internally screw threaded lower portion of the passage .30 in piston 26, whereby an eX- treme downward movement of the piston 26 followed by a rotation thereof, will cause piston 26 to engage member 55, so that said member 55, together with the valve seat 45 and valve 46, may be removed with the piston, as illustrated ill Fig. 2.

1n operation, the upward movement of piston 26 will draw water past the valve 46 into the lower portion of cylinder 3. A downward movementof piston 26 will then force this water upwardly through the passage 30 past valve 31 and t-hrough piston section 6 and ports 10 into the upper cylinder section 2. Said downward movement of the piston 26 will also draw water lo through the openings 13 and ports 15 past the valve 17 into the upper ortion of cylfinlfer,section 3, this water being discharged .from cylinder section 3 past `valve 37 into 15, passage 30 and piston rod section 6 on the next tip-stroke of piston 26. It is therefore obvious that there will be a constant flow of water through piston rod section 6, so long ,asthe movement of piston 26 continues in E, C,either direction, said water being delivered 2o .from the lower portion of cylinder section E,3.pnthe down stroke, past valve 31, and from ,the upper portion of section 3 on the up stroke, past valve 37.

5;, improved construction is particularly adapted for deep wells, since it permits a ,multiplication of piston rod sections 3 and ilpistons, limited only by the strength of the lAmaterials used. For example, a duplicate connecting member 4 and plug 10 may be 30 employed at the lower end of cylinder section 3 in substitution for the member 43 and evalve seat 45. Another ycylinder section 3, .piston 2G, and valve casing 25, with valves 11.31 and 37 therein, may then be connected tothe lower end of the duplicate connecting -member 4, such valve casing and piston being supported from the piston 26 illustrated in Fig. 1, by a duplicate tubular piston v V-rodseotion 6. The member 43 with'valve floysat and valve, would, of course,..then be adjusted to the lower end of the lower or duplicate cylinder section 3. It is not A:deemed necessary to illustrate such duplimi ication of the parts of my pumping apparaetus", the manner of such duplication being ebvious from the above description Vand 'esizivolving the mere addition of another cyl- ,finder section 3 and a duplication of the ce 'lparts shown in Fig. 2 therein.

v.tnlflaving thus described my invention,

lwliat I claim as new, and desire to secure.`

ibygfLetters Patent, iswlaA pumping apparatus comprising the combination with a set of cylinder sections, cinnnected together and provided with a ipcnted plug at the pointcf connection, of a tubular piston rod extending through said plug, a piston supported by said tubular i :'piston rod and operating in one of the cylinolder sections, said piston `having a valved gpassage leading therethrough, a valve casmounted on said piston and ported at its upper end at the sides of the piston rod, a valve controlling the delivery of iiuid to the tubular piston rod from below the piston, a spring actuated valve controlling the delivery of fluid to the tubular piston rod through the upper ports inthe valve casing from above the piston, a valve controlling the admission of fluid through said ported plug to the space above the piston, a coiled spring normally closing said valve, a supporting member therefor connectedv with the ported plug, and another valve controlling the admission of fluid from below the lower cylinder section to the space below the piston.

2. A pumping apparatus comprising the combination of a set of cylinder sections, a connecting member therefor, a tapered plug seated in said connect-ing member and `provided with inlet ports, said connecting member being provided with apertures in registry with said ports, a spring seated check valve permitting the delivery of fluid to the lower cylinder through said ports, a tubular piston rod extending through said plug, a ported piston, a valve casing connecting the same with said piston rod, a check valve permitting an upward deliv-` ery of fluid through the piston port into 9.0` said casing, another check valve permitting a downward delivery of fluid from the cylinderspace above the piston into the valve casing, the interior of said valve casing beving in communication with the tubular pis 95 ton rod section, and a check valve adapted to admit fluid to said cylinder section below the piston.

3. A pumping apparatus comprising the combination of a set of cylinder sections, a tapered and ported connecting member therefor, a plug seated in theconnecting member and provided with downwardly eX- Vtending valved passages leading from the connecting member ports through the plug into the lower cylinder section, a check valve at the lower end of said cylinder section, a two way acting piston in said cylinder sectionprovided with a port extending upwardly therethrough, a valve casing mounted upon said piston, a check valve in said casing permitting iuid to enter the .casing through the piston port from below the piston, another check valve admittingl fluid to said casing from above the piston,` a tubularpiston rod connected with said casing and in communication with the interior thereof, said tubular piston rod extendingvthrough said ported plug and communieating with-the interior of the upper cylin` der section above the plug.

4. A pump piston provided with a passage therethrough, a tubular piston rod with which said passage communicates, a downwardly closing valve seated in said passage and controlling the flow of fluid .therethrough from below the piston, and an sage and controlling the admission of iuid gether with a spring for seating the upper thereto from the space above the piston ex valve. 10 terior to the piston rod, said upwardly In testimony whereof I afiX my signature closing valve being adapted, when Closed, to in the presence of two witnesses.

permit a delivery of fluid to the tubular pis- CHARLES R. HUDSON. ton rod, said passage being enlarged to re- Witnesses:

ceive the valves and said valves being pro- D. WV. HUDSON,

vided with interlapping guide members, to- MARY E. DUNN.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents.

Washington, D. C. 

